When I was young, my mother passed away from illness. I vaguely remember her face, but it's unclear. My father ran a company, and we lived a comfortable life, but he was always away, leaving me feeling lonely. Half a year ago, he brought home Kumiko. She reminded me of my mother in some ways, but she wasn't my real mother. Kumiko treated me like her own son, but... her kindness felt unsettling to me. I couldn't understand why, but I finally realized it: I was developing feelings for Kumiko as a woman.